Charles nelson



(No Model.) r

, G. NELSON.

MAGHINE- FOR MAKING MUFFLING STRIPS FOR SLATBS, 6m.

No, 352,145. Patented Nov.'9, 1886.

INVENTOR'.

Mg ATTORNEYS N. PETERS. Fholu-Lllhognphur, wghihgton. no.

UNITE STATES PA ENT OFFICE.

CHARLES NELSON, OF EAST NEW YORK, N. Y.

MACHINE FOR MAKING MUFFLING-STRI PS FOR SLATES, 80C.

SPECIFICATION forming pazt of Letters Patent No. 352,145, dated November 9, 1886. Application filed January 7, 1886. Serial No. 187,914. No model.)

To all whom it may concern:

Be it known that I, CHARLES NE won, a citizen of the United States, residing at East New York, in the county of Kings and State of New York, have invented new andnseful Improvements in Machines for Making Muffling-Strips for Slates, 850., of which the followi ug is a specification.

My invention relates to improvements in machines for making muffling-strips, and especially for making such strips as are intended to be attached to school-slates; and my invention consists inthe combination 'of devices hereinafter described and claimed, reference being made to the accompanying drawings,in which- Figure 1 represents a sectional side elevation ofa machine embodying my invention. Fig. 2 represents end and sectional 'views .of the splint-covering spindle. Fig. 3 is a side elevation of the finished muffling-strip on a larger scale than the preceding figures. Fig. 4 is a transverse section thereof.

Similar letters indicate corresponding parts.

. In the drawings, the letter A designates the frame of the machine, which frame is provided with bearings for. the driving-shaft B, and is constructed to support the operating parts.

0 is a stationary hollow spindle, which is supported at one end in a standard, D, which latter is secured to the. frame A. As shown in Figs. 1 and 2, that part of the bore 0 of the be injured by said rolls.

spindle which extends from the left hand and toward the center is cylindrical, and then it gradually tapers to a rectangular cross-section at the right-hand end, so that as the wooden splint E and the cloth E are fed forward the cloth is folded about the splint, as shown in Figs. 3 and 4. The spindle O, I shall hereinafter term the splint-covering spindle.

To draw the splint and cloth through this splint-covering spindle O, I employ a pair of G G, in the usual manner. The rolls F F are covered with rubber f f, or other suitable yielding material, in order that the fabric may not To encircle the muffiing-strips with a continuous cord, H, Figs.

1, 2, and 3, whereby the fabric .is secured to the splint, I employ the following device. On the splint-covering spindle O is mounted a pulley, I, having a wide flange, J. This flanged pulley I can rotate on the spindle, and is prelocking-bar, N, the free end of which bar N can be secured to the arm M by a thu nib-screw, 0. The spindle 0 extends beyond the lockingbar N, and in order to guide the cord H on the spool L to the muffling-st-rip as the latter is fed forward by the rolls, the said cord is passed through an eye, m, in thebar N, and through eyes in the posts m and 112*, situated, respectively, on the arm M and looking-bar N. A rotary motion is imparted to the flangepulley I by a belt, 0, passing around the said pulley and also around a pulley, O, on the drivingshaft B, and the rolls F F are rotated by a pulley, P, which is connected by a belt, P with apulley, 1?, on the drivingshaft.

7 It is evident that asthe winding-frame re-r volves about the spindle O as an axis the cord H will be wound helically about the mufflingstrip. In manufacturing .the muffling-strips the wooden splints are first cut in the required lengths,to extend around the edges of the slatefor example, about thirtyinches-and the covering fabric, which is preferably flannel, is cut in a long strip of such a width that it will fold about the splint without overlapping at the adjoining edges.

The operation of the machine is as follows:

One of the cut splints is passed through the splint-covering spindle until it is in a position to be grasped by the rolls when the machine is set in motion. To the end of the splint which projects toward the operator is secured one end of the covering fabric, which end is neatly folded about the said end of the splint. The splint is then pulled forward, either by hand or by setting the rolls in motion, until the covering fabric projects beyond the righthand end of the splint-covering spindle, whence the cord H is attached to the covering, and the machine can then continue in its motion, new splints being continually added. In adding subsequent splints, it is only necessary to in-. sert the same in the spindle as the end of the preceding spindle toward the operator reaches the left-hand end of the spindle, whereby a continuous length of muffling-strip is produced. This strip is then out at the juncture of the splints, and it can then be used for the purpose desired.

WVhat I claim as new, and desire to secure by Letters Patent, is-

1. A machine for makingmuffling-strips for slates, combining in its structure the stationary splint-covering spindle interiorly cylindrical at one end and uniformly tapering to a rectangular cross-section at the other end, to provide a rectangular mouth for covering a flat wooden splint with a flexible material,the rotating feedrollers for drawing the splint and its covering material through the spindle, and a rotary cordwinding frameloosely mounted on said spindle, substantially as described.

2. The combiration, in a machine for making muffling-strips for slates, of the stationary splint-covering spindle interiorly cylindrical at one end and uniformly tapering toward the other end into a mouth rectangular in crosssection, for covering a fiat splint with a flexible material, two rotating feed-rollers, a driving-shaft, means for imparting motion to one of said rollers from the shaft, and a rotating cord-winding frame loosely mounted on said spindle, substantially as described.

3. The combination, in a machine for making muflling-strips for slates, of the stationary splint-coveringhollowspindleinteriorlytapering into a mouth at one end, which is rectangular in cross-section, for covering a flat splint with a flexible material, two rotating rollers,

l between which the splint and its covering are grasped and by which they are drawn through the spindle, a pulley on the shaft of one of the rollers, a driving-shaft, a belt connecting the shaft with said pulley for rotating the latter, and a rotating winding-frame loosely mounted on said spindle, substantially as described.

4. The combination, in a machine for making muffling-strips for slates, of the stationary splint-covering spindle uniformly tapering interiorly into a rectangular mouth at one end, for covering a flat splint with a flexible material, two rotating feed-rollers, a pulley on the shaft of one of said rolls, acord-winding frame loosely mounted on the spindle and provided with a pulley, a driving-shaft, and two belts, respectively connecting the said shaft with the pulleys on the feed roller and the windingframe, substantially as described.

5. The combination of a stationary splintcovering spindle, two rotating rollers,arrang ed one above the other, between which the splint and its covering are grasped and by which they are continuously drawn through the spindle, a driving-shaft, a belt connecting the shaft with one of said rollers for rotating the latter, and a rotating winding-frame mounted on the spindle, substantially asdescribed.

In testimony whereof I havehereunto set my hand and seal in the presence of two subscribing witnesses.

CHAS. NELSON. [L. s.]

Witnesses:

W. HAUFF, E. F. KASTENHUBER. 

